I think anyone can understand the frustration, but runs are going to be given up in most games. For most 4/5 pitchers, you just hope they keep you in the game and don't let it get out of control.
But take Bills vs. the Cubs, for example. He started getting in to trouble in, what, the 6th inning? He walked Soriano, then gave up a hit. But Donnie stayed with him, and Bills pitched himself out of the trouble and preserved the BP another 2 innings.
But no one will remember that, because no one remembers those parts. But they will have remembered if Chad had given up a 3-run bomb.
But if Donnie had pulled Chad, and the reliever had given up the 3-run bomb, people would have blamed Donnie.
It really doesn't matter, I guess. Haters will find excuses to hate.